St. Louis, MO has a humid continental climate with hot and humid summers and cold winters. Winters are typically cold with temperatures often dropping below freezing, with occasional snowfall. Summers are generally hot and humid, with temperatures usually rising to the mid-80s. Spring and fall are mild, with temperatures varying between the low 70s and mid-50s. The area receives an average of about 39 inches of rain annually, primarily concentrated during the warmer months of April to October.
St. Louis, Missouri gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Louis averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in St. Louis. The US average is 205 sunny days.
St. Louis gets some kind of precipitation, on average, 105 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 89 degrees
Winter Low: the January low is 23
Rain: averages 42 inches of rain a year
Snow: averages 16 inches of snow a year